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Description: 基于计算机声卡的频谱分析仪屏幕采集程序，可以抓取非程控频谱分析仪的地屏幕显示-Screen capature program basing on PC sound card, enable screen capture for those spectrum analyzer with no GPIB port.
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Size: 2272256 |
Author: stewat |
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Description: This program was put together to visualize sound by audio spectrum, Oscilator, VU meters. It is a simple CD player also. NOTE: Please compile the source to use. The IDE is slower.
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Size: 15360 |
Author: thangbom40000 |
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Description: 51单片机实现BEEP_标准7谱音_简易电子琴，程序经下载可用-51 standard single-chip realization of BEEP_ _ 7 spectrum sound simple organ, the procedure can be used by the download
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Size: 9216 |
Author: 无风 |
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Description: 基于声卡的频谱分析仪,用LabVIEW编写，经过测试成功-Spectrum analyzer based on sound card
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Size: 394240 |
Author: 刘东鑫 |
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Description: 我国是世界上小麦种植面积最大和消费最高的国家之一。小麦为国际主粮之一，也是食品工业的重要原料。作为最重要粮食品种之一的小麦，其价值与用途取决于它的品质。因此，基于信号处理技术，研究客观、便捷的小麦品质测定方法对提高小麦品质、减少产后损失、保证国家粮食安全具有十分重要的意义。本课题拟在研究、分析国内外无损检测技术在农产品品质分析应用现状和研究进展的基础上，研究小麦籽粒声信号的预处理方法。根据声学检测原理，研制出小麦籽粒的声信号采集装置，首先采集小麦籽粒下落碰撞所产生的声音信号，对小麦声信号进行编辑和预处理，实验结合信号处理技术及MATLAB软件，对单粒小麦样品的声信号进行谱估计和小波变换，提取出时域和频域特征参数，为探讨小麦声学特性与其品质指标的关系奠定基础。本论文利用MATLAB软件编写小麦声音信号预处理程序，通过对小麦籽粒声信号进行处理，成功的提取出了有效的时域、频域的多种特征参数，为研究其声学特性与小麦品质内在的关系，做了充分的准备工作。-China is one of the countries in the world which has the largest wheat growing area and highest consumption. Wheat is one kind of the staple food in the world and also an important material for food industry. The value of wheat and its use all depends on is quality, To enhance quality of wheat,readuce post harvest loss and ensure grain security, great efforts should be made to develop rapid, objective, and easy methods for assessing wheat quality using signal processing techniques. This paper do the research of wheat signal preconditioning method and it basis of analysis domestic and foreign non-destructive testing technology.According to acoustic detection theory,an equipment of obtaining wheat sound signals is developed. Collecting the dropping voice signals of different varieties of wheat samples.And then do editing and sound signal preprocessing on wheat through signal processing technology.This paper do some research about spectrum estimate and wavelet transform on single wheat wi
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Size: 148480 |
Author: qichao |
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Description: 改变原始wav音频信号的抽样频率，并且显示处理前后声音信号的频谱.有助于帮助大家理解奈圭斯特抽样定理。-Change the original wav audio signal sampling frequency, and shows the spectrum of sound signal before and after treatment. Helps to help you understand the Nyquist sampling theorem.
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Size: 143360 |
Author: leo |
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Description: 该源程序是基于虚拟仪器的心音图形显示系统，主要实现体表心音的采集和实时显示,心音信号的频谱分析以及临床听诊库的管理-The source code is based on heart sound virtual instrument graphical display system, mainly to achieve surface collection and real-time display of heart sound, heart sound signal spectrum analysis and management of clinical auscultation Library
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Size: 37888 |
Author: 李茂国 |
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Description: 这是一个基于VC的声卡采集程序，从声音的信号采集消息的处理，频谱的分析，波形的显示-This is a VC-based sound card acquisition program, collecting information from the voice signal processing, spectrum analysis, waveform display and so on. .
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Size: 56320 |
Author: 谢明 |
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Description: 自己遍的一种用于单字音识别的端点检测代码，首先做mfcc,再利用功率谱的峰值作为语音的方法，结果给出的是有效的mf-For their kind words over the sound identification of endpoint detection code, using the energy spectrum of the peak short-sighted approach as a voice
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Size: 3072 |
Author: leeandxx |
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Description: VB编写的声卡频谱分析仪，有源码，还不错-VB, sound card spectrum analyzer, a source, not bad
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Size: 28672 |
Author: yinchengkun |
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Description: 示波器加频谱分析仪基于声卡和其它数据采集卡-oscilloscope spectrum analyzer
base on sound card and other instruments
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Size: 106496 |
Author: 孙晓明 |
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Description: This java applet is a demonstration of digital filters. You should hear a noise waveform when the applet starts up. If you get a message "Need java 2 for sound", then you should get the Java plug-in.
The applet starts up with a low-pass filter. It shows the frequency response of the filter, the spectrum of the filtered waveform being played, the waveform itself, and the impulse response of the filter. Click on the response curve to change the cutoff frequency.
You can use the popup menus on the right to select another filter or input file.
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Size: 20480 |
Author: reza g |
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Description: 音频频谱分析，实现频谱搬移，对分析声音信号很有帮助。-Audio spectrum analysis, to achieve the spectrum move, on the analysis of sound signals helpful.
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Size: 1024 |
Author: pdon |
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Description: 基于labview 的声卡设计-虚拟信号发生器和频谱分析仪 -Labview sound card based on the design- the virtual signal generator and spectrum analyzer
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Size: 147456 |
Author: 李少彪 |
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Description: 基于声卡的频谱分析仪，本文件采用labview实现，通过声卡采集数据，然后进行频谱分析。-Spectrum analyzer based on sound card, the file is labview achieved through sound data collection and spectral analysis
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Size: 393216 |
Author: 王言法 |
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Description: The library for working with sound. Getting the spectrum of sound
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Size: 68608 |
Author: yura |
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Description: LabVIEW基于声卡的数据采集与分析软件，可实现声卡配置，声音采集，时域参数测量，频谱波形显示等功能-LabVIEW-based data acquisition and analysis of the sound card software, enabling the sound card configuration, sound acquisition, time domain parameters measurements, spectrum waveform display and other functions
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Size: 841728 |
Author: andy |
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Description: 整个系统分为数据采集和数据分析两大部分，以友好的图形界面与用户进行交互沟通。
声音数据采集部分实现数据采集功能,根据用户选择的采样频率和预设的采样时间来从声卡获得用户需要的数据。并且将采集到的数据及其频谱图以图形方式很直观的呈现于用户面前。
图像采集分析部分，读入图像后，根据选择，对其进行Linear Conformal、Affine、Projective、Polynomial、Piecewise Linear、Sinusoidal、Barrel、Pin Cushion变换-The whole system is divided into data collection and data analysis of two parts, with a friendly graphical interface to communicate with the user interaction.
Sound data collection part of the data collection function, according to user-selected sampling frequency and sampling time to the default user from the sound card to obtain the data needed. And the collected data and the spectrum is very intuitive graphically presented in front of the user.
Image acquisition and analysis section, read the image, based on the choice of its Linear Conformal, Affine, Projective, Polynomial, Piecewise Linear, Sinusoidal, Barrel, Pin Cushion Transformation
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Size: 87040 |
Author: tanii |
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Description: 求离散傅立叶频谱, 重构低通滤波,在噪声环境下语音信号的增强,语音信号为读入的声音文件,噪声为正态随机噪声-Discrete Fourier spectrum seeking to reconstruct low-pass filter, the noise enhancement of speech signals, speech signal is read into the sound file, the noise is normal random noise
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Size: 5120 |
Author: 孙艳 |
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Description: 通过声卡采集信号，进行频谱分析，实时绘制出频谱分析图，并可以把分析数据存到数据库中。-Collected through the sound signals, spectral analysis, real-time spectrum analysis chart to map out and analyze the data can be stored in the database.
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Size: 4608000 |
Author: lanlan |
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